[WIP] Updates the LTR-Standard and LTR-Net decoders to use a new LTR

decoder with a zero-crossing symbol timing error detector.  The new
decoder is optimized for 8 kHz FM demodulated audio produced by the
AudioModule.

src/main/java/io/github/dsheirer/dsp/fsk/LTRDecoderInstrumented.java

@@ -0,0 +1,40 @@
+/*******************************************************************************
+ * sdr-trunk
+ * Copyright (C) 2014-2018 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by  the Free Software Foundation, either version 3 of the License, or  (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; without even the implied
+ * warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License  along with this program.
+ * If not, see <http://www.gnu.org/licenses/>
+ *
+ ******************************************************************************/
+package io.github.dsheirer.dsp.fsk;
+
+public class LTRDecoderInstrumented extends LTRDecoder
+{
+    /**
+     * Instrumented extension to LTRDecoder
+     *
+     * @param messageLength in symbols
+     */
+    public LTRDecoderInstrumented(int messageLength)
+    {
+        super(messageLength, new SampleBufferInstrumented(SAMPLES_PER_SYMBOL, COARSE_TIMING_GAIN),
+            new ZeroCrossingErrorDetectorInstrumented(SAMPLES_PER_SYMBOL));
+    }
+
+    public SampleBufferInstrumented getSampleBuffer()
+    {
+        return (SampleBufferInstrumented)mSampleBuffer;
+    }
+
+    public ZeroCrossingErrorDetectorInstrumented getErrorDetector()
+    {
+        return (ZeroCrossingErrorDetectorInstrumented)mTimingErrorDetector;
+    }
+}